87026660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{621619}}^1$

素因数の和:621635

約数の個数: 24

約数和(自身を含む): 208864320

約数和(自身を除く): 121837660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 621619, 1243238, 2486476, 3108095, 4351333, 6216190, 8702666, 12432380, 17405332, 21756665, 43513330, 87026660]

約数ペア:

[(1, 87026660), (2, 43513330), (4, 21756665), (5, 17405332), (7, 12432380), (10, 8702666), (14, 6216190), (20, 4351333), (28, 3108095), (35, 2486476), (70, 1243238), (140, 621619)]